15478420067 has 12 divisors (see below), whose sum is σ = 17600145360. Its totient is φ = 13586070960.

The previous prime is 15478420057. The next prime is 15478420127. The reversal of 15478420067 is 76002487451.

It is not a de Polignac number, because 15478420067 - 2¹⁴ = 15478403683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15478420057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202023 + ... + 2209040.

It is an arithmetic number, because the mean of its divisors is an integer number (1466678780).

Almost surely, 2^15478420067 is an apocalyptic number.

15478420067 is a deficient number, since it is larger than the sum of its proper divisors (2121725293).

15478420067 is a wasteful number, since it uses less digits than its factorization.

15478420067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411114 (or 4411103 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 15478420067 in words is "fifteen billion, four hundred seventy-eight million, four hundred twenty thousand, sixty-seven".